Пример #1
0
func (fs *CamliFileSystem) fetchSchemaSuperset(br *blobref.BlobRef) (*schema.Superset, os.Error) {
	blobStr := br.String()
	if ss, ok := fs.blobToSchema.Get(blobStr); ok {
		return ss.(*schema.Superset), nil
	}
	log.Printf("schema cache MISS on %q", blobStr)

	rsc, _, err := fs.fetcher.Fetch(br)
	if err != nil {
		return nil, err
	}
	defer rsc.Close()
	jd := json.NewDecoder(rsc)
	ss := new(schema.Superset)
	err = jd.Decode(ss)
	if err != nil {
		log.Printf("Error parsing %s as schema blob: %v", br, err)
		return nil, os.EINVAL
	}
	if ss.Type == "" {
		log.Printf("blob %s is JSON but lacks camliType", br)
		return nil, os.EINVAL
	}
	ss.BlobRef = br
	fs.blobToSchema.Add(blobStr, ss)
	return ss, nil
}
Пример #2
0
func (mi *Indexer) populateFile(client *mysql.Client, blobRef *blobref.BlobRef, ss *schema.Superset) (err os.Error) {
	if ss.Fragment {
		return nil
	}
	seekFetcher, err := blobref.SeekerFromStreamingFetcher(mi.BlobSource)
	if err != nil {
		return err
	}

	sha1 := sha1.New()
	fr := ss.NewFileReader(seekFetcher)
	mime, reader := magic.MimeTypeFromReader(fr)
	n, err := io.Copy(sha1, reader)
	if err != nil {
		// TODO: job scheduling system to retry this spaced
		// out max n times.  Right now our options are
		// ignoring this error (forever) or returning the
		// error and making the indexing try again (likely
		// forever failing).  Both options suck.  For now just
		// log and act like all's okay.
		log.Printf("mysqlindex: error indexing file %s: %v", blobRef, err)
		return nil
	}

	attrs := []string{}
	if ss.UnixPermission != "" {
		attrs = append(attrs, "perm")
	}
	if ss.UnixOwnerId != 0 || ss.UnixOwner != "" || ss.UnixGroupId != 0 || ss.UnixGroup != "" {
		attrs = append(attrs, "owner")
	}
	if ss.UnixMtime != "" || ss.UnixCtime != "" || ss.UnixAtime != "" {
		attrs = append(attrs, "time")
	}

	log.Printf("file %s blobref is %s, size %d", blobRef, blobref.FromHash("sha1", sha1), n)
	err = execSQL(client,
		"INSERT IGNORE INTO files (fileschemaref, bytesref, size, filename, mime, setattrs) VALUES (?, ?, ?, ?, ?, ?)",
		blobRef.String(),
		blobref.FromHash("sha1", sha1).String(),
		n,
		ss.FileNameString(),
		mime,
		strings.Join(attrs, ","))
	return
}
Пример #3
0
func (mi *Indexer) populateFile(blobRef *blobref.BlobRef, ss *schema.Superset) (err os.Error) {
	seekFetcher, err := blobref.SeekerFromStreamingFetcher(mi.BlobSource)
	if err != nil {
		return err
	}

	sha1 := sha1.New()
	fr, err := ss.NewFileReader(seekFetcher)
	if err != nil {
		log.Printf("mysqlindex: error indexing file %s: %v", blobRef, err)
		return nil
	}
	mime, reader := magic.MimeTypeFromReader(fr)
	n, err := io.Copy(sha1, reader)
	if err != nil {
		// TODO: job scheduling system to retry this spaced
		// out max n times.  Right now our options are
		// ignoring this error (forever) or returning the
		// error and making the indexing try again (likely
		// forever failing).  Both options suck.  For now just
		// log and act like all's okay.
		log.Printf("mysqlindex: error indexing file %s: %v", blobRef, err)
		return nil
	}

	log.Printf("file %s blobref is %s, size %d", blobRef, blobref.FromHash("sha1", sha1), n)
	err = mi.db.Execute(
		"INSERT IGNORE INTO bytesfiles (schemaref, camlitype, wholedigest, size, filename, mime) VALUES (?, ?, ?, ?, ?, ?)",
		blobRef.String(),
		"file",
		blobref.FromHash("sha1", sha1).String(),
		n,
		ss.FileNameString(),
		mime,
	)
	return
}